CA2329739C - Centrally fed antenna system and method for optimizing such an antenna system - Google Patents
Centrally fed antenna system and method for optimizing such an antenna system Download PDFInfo
- Publication number
- CA2329739C CA2329739C CA002329739A CA2329739A CA2329739C CA 2329739 C CA2329739 C CA 2329739C CA 002329739 A CA002329739 A CA 002329739A CA 2329739 A CA2329739 A CA 2329739A CA 2329739 C CA2329739 C CA 2329739C
- Authority
- CA
- Canada
- Prior art keywords
- reflector
- antenna system
- copolar
- antenna
- feed system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
- H01Q19/021—Means for reducing undesirable effects
- H01Q19/023—Means for reducing undesirable effects for reducing the scattering of mounting structures, e.g. of the struts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/141—Apparatus or processes specially adapted for manufacturing reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
- H01Q19/021—Means for reducing undesirable effects
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
- H01Q19/021—Means for reducing undesirable effects
- H01Q19/025—Means for reducing undesirable effects for optimizing the matching of the primary feed, e.g. vertex plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
- H01Q19/021—Means for reducing undesirable effects
- H01Q19/028—Means for reducing undesirable effects for reducing the cross polarisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
- H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19817766A DE19817766A1 (de) | 1998-04-21 | 1998-04-21 | Zentral gespeistes Antennensystem und Verfahren zum Optimieren eines solchen Antennensystems |
DE19817766.6 | 1998-04-21 | ||
PCT/DE1999/001188 WO1999054955A2 (de) | 1998-04-21 | 1999-04-20 | Zentral gespeistes antennensystem und verfahren zum optimieren eines solchen antennensystems |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2329739A1 CA2329739A1 (en) | 1999-10-28 |
CA2329739C true CA2329739C (en) | 2004-02-24 |
Family
ID=7865303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002329739A Expired - Fee Related CA2329739C (en) | 1998-04-21 | 1999-04-20 | Centrally fed antenna system and method for optimizing such an antenna system |
Country Status (8)
Country | Link |
---|---|
US (1) | US6489929B1 (de) |
EP (1) | EP1074061B1 (de) |
JP (1) | JP2002512462A (de) |
CN (1) | CN1292939A (de) |
CA (1) | CA2329739C (de) |
DE (2) | DE19817766A1 (de) |
DK (1) | DK1074061T3 (de) |
WO (1) | WO1999054955A2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4001014B2 (ja) * | 2002-12-25 | 2007-10-31 | 日本電気株式会社 | 携帯電話機 |
JP4468300B2 (ja) | 2003-08-13 | 2010-05-26 | 三菱電機株式会社 | 反射鏡アンテナ装置 |
JP4673067B2 (ja) * | 2005-01-18 | 2011-04-20 | 株式会社デバイス | アンテナ昇降装置 |
EP2161784A1 (de) * | 2008-09-05 | 2010-03-10 | Astrium Limited | Antennenreflektor |
US9190716B2 (en) * | 2008-09-05 | 2015-11-17 | Astrium Limited | Reflector |
US10516216B2 (en) | 2018-01-12 | 2019-12-24 | Eagle Technology, Llc | Deployable reflector antenna system |
US10707552B2 (en) | 2018-08-21 | 2020-07-07 | Eagle Technology, Llc | Folded rib truss structure for reflector antenna with zero over stretch |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS564903A (en) | 1979-06-26 | 1981-01-19 | Nippon Telegr & Teleph Corp <Ntt> | Opening surface antenna with improved cross polarization characteristic |
-
1998
- 1998-04-21 DE DE19817766A patent/DE19817766A1/de not_active Withdrawn
-
1999
- 1999-04-20 JP JP2000545212A patent/JP2002512462A/ja not_active Withdrawn
- 1999-04-20 DE DE59903754T patent/DE59903754D1/de not_active Expired - Lifetime
- 1999-04-20 CN CN99803942XA patent/CN1292939A/zh active Pending
- 1999-04-20 CA CA002329739A patent/CA2329739C/en not_active Expired - Fee Related
- 1999-04-20 DK DK99927692T patent/DK1074061T3/da active
- 1999-04-20 US US09/673,838 patent/US6489929B1/en not_active Expired - Lifetime
- 1999-04-20 EP EP99927692A patent/EP1074061B1/de not_active Expired - Lifetime
- 1999-04-20 WO PCT/DE1999/001188 patent/WO1999054955A2/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE19817766A1 (de) | 1999-11-11 |
US6489929B1 (en) | 2002-12-03 |
WO1999054955A3 (de) | 1999-12-02 |
DE59903754D1 (de) | 2003-01-23 |
CN1292939A (zh) | 2001-04-25 |
JP2002512462A (ja) | 2002-04-23 |
EP1074061A2 (de) | 2001-02-07 |
CA2329739A1 (en) | 1999-10-28 |
EP1074061B1 (de) | 2002-12-11 |
DK1074061T3 (da) | 2003-01-06 |
WO1999054955A2 (de) | 1999-10-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20160420 |